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<1234567…34>
  • 'usr 0 mode'Can anybody explain why some programs can't be just loaded after turning spectrum on but you must type 'usr 0' before loading them?

    Can anybody explain why some programs can't be just loaded after turning spectrum on but you must type 'usr 0' before loading them?
    PopoCop PopoCop November 2005 Sinclair Miscellaneous
  • Usr 0 ?I'm not sure I've ever seen this explained before, but why do some programs (only demos, as far as I can see, so far) need USR 0 mode when run on a 1…

    ... ), the same as PRINT USR 0, LET a=USR 0, etc, of course, and ... advantages for the program does USR 0 mode offer over the standard ... program that might require a USR 0 style setup) could, when ... place, and do whatever else USR 0 mode does, then continue running ...
    ewgf ewgf December 2008 Sinclair Miscellaneous
  • Help! USR 0 mode?Right, first of all, I know that this is in the wrong forum, and secondly it's maybe against the TOS anyway, as it's just asking people to read and p…

    ... />
    I've asked about USR 0 mode, and whilst I've ...
    ewgf ewgf December 2008 Emulators
  • Usr 0I have noted there are some games / applications / demos which have to be loaded in USR 0 mode on a 128K Machine ("Randomize USR 0" in 128K BASIC the…

    ... loaded in USR 0 mode on a 128K Machine ("Randomize USR 0" in 128K ... is the case, and what USR 0 actually DOES?
    Swevicus Swevicus January 2010 Hardware
  • USR 0I've heard a lot about loading a program in USR 0 (and yes, I know how to do it - "RANDOMIZE USR 0" in 128 BASIC). What I want to know is: What is th…

    I've heard a lot about loading a program in USR 0 (and yes, I know how to do it - "RANDOMIZE USR 0" in 128 BASIC). What I want to know is: What is the point of loading a program in USR 0 mode, and what does it actually DO?
    Swevicus Swevicus November 2012 Hardware
  • Ensure program runs in USR 0 mode?Is there some BASIC that can be used in a program to make sure the the program runs (even on 128k models) in 48k or USR 0 mode? I obviously then wan…

    Is there some BASIC that can be used in a program to make sure the the program runs (even on 128k models) in 48k or USR 0 mode? I obviously then want to be able to run the rest of the program from the USR 0 mode.
    matalog matalog February 2018 Sinclair Basic
  • Randomize USR xxxxxA weird topic: When I was a kid I use to mess around with the RANDOMIZE USR xxxxx, sad I know!!! For instance RANDOMIZE USR 51234 would give me a loa…

    ROFL!!!

    I did that too! RAND USR 1299 is my favourite. Doesn't work on the +2 though, or it works properly.....


    I started this weird hobby in 1983 when my dad taught me to type RUN USR 0 instead of NEW
    thx1138 thx1138 June 2002 Sinclair Miscellaneous
  • Any new Spectrum games? I'm thinking of trying to program a very simple game on my Spectrum. Would anyone like to make games on thier own Spectrums and put on the web for e…

    ... yourself"
    50 PAUSE 0
    60 RANDOMIZE USR 0

    That ...
    Ian Hamilton Ian Hamilton December 2002 Games
  • Any new Spectrum games? I'm thinking of trying to program a very simple game on my Spectrum. Would anyone like to make games on thier own Spectrums and put on the web for e…

    ... yourself"
    50 PAUSE 0
    60 RANDOMIZE USR 0
    That sums ...
    Tkrap64 Tkrap64 December 2002 Games
  • Perfect RemakesIdea: Just convert Z80 source code to x86 source code! It might not work, but it's just a suggestion. It would be more of a realistic idea than my Z…

    ... complete gimp!!!"
    20 RANDOMIZE USR 0

    An accurate simulation ...
    Ian Hamilton Ian Hamilton December 2002 Games
  • Basic and AY musicis it possible to play an ay-music in background while a basic program is running?

    ... other line would be Randomize Usr xxxxx. You'd just have ... , or goto 128 basic type USR 0 and then load it.
    Amigo Amigo January 2003 Sinclair Basic
  • compatibility between ZX computers?Hey all, I'm new here :) I was wondering about compatibility between ZX computers. Is it possible to run a game made for ZX80 on a ZX Spectrum? Or a …

    ... 128K (It works in PRINT USR 0 mode, what ever it means ...
    Dr BEEP Dr BEEP July 2003 Sinclair Miscellaneous
  • 128 TR-DOS and D80 questions1) The Scorpion has a line in the menu that says "128 TR-DOS". Whatever I do, when I select it, it simply reads a bit from the disk and then hangs. D…

    ... "basic" tr-dos and type usr 0 it will just take you ... start and ignore that randomize usr command otherwise thats so many ...
    Amigo Amigo August 2003 Sinclair Miscellaneous
  • ALIENATE - final version of the ZX-demo! (MOD music!)Hi there! Next new-school demo from HOOY-PROGRAM is here: [url="http://republika.pl/hooyprogram/alienat.zip"]http://republika.pl/hooyprogram/alienat.…

    ... handle it. yes i did usr 0 in 128 mode. maybe my ...
    Amigo Amigo August 2003 Sinclair Miscellaneous
  • C64's SID music on ZX - the demo is HERE!!I'm proud to announce, that two great persons from Central Europe - Poke & Omega - have made something really important for Spectrum world. Now ZX …

    ... it only loads properly in USR 0 from 128 basic :)

    b00mzi11a b00mzi11a October 2003 Sinclair Miscellaneous
  • C64's SID music on ZX - the demo is HERE!!I'm proud to announce, that two great persons from Central Europe - Poke & Omega - have made something really important for Spectrum world. Now ZX …

    [quote]
    On 2003-10-24 09:45, b00mzi11a wrote:
    Just keeps repeating the same intro section over and over again for me on Spectaculator..
    [/quote]

    This is what happens if you don't load in usr 0 mode.
    Alcoholics Anonymous Alcoholics Anonymous October 2003 Sinclair Miscellaneous
  • Czech and English translation of Abe's Mission - Escape - Speccy remake of great PC/PSX game !!!Hi! You certainly know Abe from PC or PSX games Oddworld-Abe Oddysee and Oddworld-Abe Exoddus. Brothers decided to made it for our Spectrum. It was …

    You have to run it from USR 0 mode, guys! (Go to 128 Basic, type usr 0 and press enter. You get 48k basic but with 128k paging.)

    z00m^TCG
    zoom zoom November 2003 Announcements
  • cool zx-game, take a lookHere it is: [url="http://tcg.speccy.cz/get.php?abe=1"]http://tcg.speccy.cz/get.php?abe=1[/url] anjoy. ;)

    No worries yerz
    abes a top top looking speccy game :) thx
    as soon as ive got a spare 10 mins ill try it again with the usr 0 stuff and have a proper go....anymore ps game conversions planned?
    spyro, resident evil?
    mel the bell mel the bell November 2003 Sinclair Miscellaneous
  • cool zx-game, take a lookHere it is: [url="http://tcg.speccy.cz/get.php?abe=1"]http://tcg.speccy.cz/get.php?abe=1[/url] anjoy. ;)

    [quote]
    On 2003-11-11 22:42, mel the bell wrote:
    as soon as ive got a spare 10 mins ill try it again with the usr 0 stuff and have a proper go
    [/quote]
    WOOOHOOOOO it works :)
    mel the bell mel the bell November 2003 Sinclair Miscellaneous
  • Tough paging questionOK... Take this: 1. We have a program compiled and run from within GENS under a Pentagon 128K environment. 2. The program works perfectly. 3. We sav…

    in 128K mode (not USR 0) the +3 uses almost the complete Bank 7 for DOS variables.
    LCD LCD November 2003 Development
  • Tough paging questionOK... Take this: 1. We have a program compiled and run from within GENS under a Pentagon 128K environment. 2. The program works perfectly. 3. We sav…

    ... starting the game or in USR 0 mode, you can overwrite this ...
    LCD LCD November 2003 Development
  • Dizzy X-Journey To Russia - English translation in 48/128 version & FIX of Abe's Mission-MissionHello there! Last week, there was discovered English translation of Russian game Dizzy X-Journey To Russia on the Internet. But it was available onl…

    :o

    Aaahh... the old 'USR 0 mode' trick ! I hadn't thought of THAT ! :) Thanks !

    Great game :). Am I right to assume that the framerate is greater on a Scorpion Turbo ?
    GOC GOC December 2003 Games
  • AY-3-8912 help !Hi all. Happy new yeay. I'm new to spectrum programming, and am interested in writing some music for the +2 AY chip. The problem is...I cant find …

    ... />
    and download SampleTracker 2.0 with a set of example ... Basic from the menu, enter "usr 0" -- the computer will reset. Then ...
    Alcoholics Anonymous Alcoholics Anonymous January 2004 Development
  • Games that wouldnt loadI had a few of these, and even after taking them bck some still didnt load first time :( anybody else have/had games like this The pain in the asses…

    ... removed a conditional branch to USR 0.

    The Lords Of ...
    andrewbroad andrewbroad February 2004 Games
  • A whole new Speccy game!Just a note to tell you that I've come across a new Speccy game at: [url="http://speccyspoilers.co.uk/temp/hyperpoocreatures.zip"]http://speccyspoil…

    ... in 48K if you do USR 0 in 128mode. When you get ...
    Sadako Sadako March 2004 Development
  • Basic problems with +3Hi everybody, sometimes ago I bought the ZX Spectrum +3. Currently I have some questions, to verify my thinking. 1. How I can easy copy the ZX Spec…

    ... 48 mode ?[/quote]

    USR 0 - yes. 48k Mode - no.
    cyborg cyborg April 2004 Sinclair Miscellaneous
  • Basic problems with +3Hi everybody, sometimes ago I bought the ZX Spectrum +3. Currently I have some questions, to verify my thinking. 1. How I can easy copy the ZX Spec…

    Hi Cyborg,

    thx for quick answer. What means USR 0?
    idrive idrive April 2004 Sinclair Miscellaneous
  • My first attempt at Gigascreen interlacingWonderful. Did some research on the port which controls memory paging and wrote a short BASIC programme to switch pages 5 and 7 in and out of the scr…

    Go into USR 0 mode (128 Basic, Type USR 0, Enter)
    10 CLEAR 49151 ...
    LCD LCD May 2004 Development
  • COVOX works?My Sprinter "simulates" a COVOX soundcard at port 4Fh, but I don't know how to use it! Can anyone explain to me the process of programming it? (To be…

    ... only gets you multiples of 0.02 seconds -- have another look ... you use a 128 in usr 0 mode. The main loop of ...
    Alcoholics Anonymous Alcoholics Anonymous May 2004 Development
  • Emulator is better than a real thing?I transffered DigiSID TAPe from [url="http://www.speccy.cz/"]http://www.speccy.cz/[/url] to my really ZX Spectrum 128K +2 (in 128 mode) and the demo …

    ... Basic try this

    USR 0

    then press ENTER ...
    Sadako Sadako July 2004 Emulators
<1234567…34>

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